These living indicators give us a “heads-up” on changes in
the stream’s environment that could affect larger animals and even
humans—so it’s important to pay attention to them!
And stonefly larvae are sensitive to pollution?
Yes. “EPT” is
an abbreviation for Ephemeroptera,
Plecoptera, and Trichoptera,
insect groups affected by many kinds of pollution. The common names for
EPTs are mayflies, stoneflies, and caddisflies. A greater number of different
types of EPTs usually indicates better water quality.
Now that even Ms. Crowbes understands, take a look at this! This data
was collected from four sampling locations along Obsidian Creek! There
are very few EPT species in Site 3—and almost none in Site
should you pay attention to changes in the type of bugs found in a
for Ephemeroptera, Plecoptera, and Trichoptera, insect groups affected
by many kinds of water pollution
name of mayflies
scientific name for stoneflies
scientific name for caddisflies